Question 1 of 20
Q
A pilot chart does NOT contain information about which item?
A
Tidal currents
B
Average wind conditions
C
Average limits of field ice
D
Magnetic variation
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Question 1 / 2066636ee928f7522a1c519e2c
Question 1 of 2066636ee928f7522a1c519e2c

A pilot chart does NOT contain information about which item?

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66636ee928f7522a1c519e2c
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A pilot chart does NOT contain information about which item?

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🔍 Key Concepts

• Pilot charts show long‑term averages and probabilities, not real-time conditions • Typical contents: prevailing winds, currents, sea and ice conditions, and magnetic variation for ocean routing • Difference between tidal currents (affected by tides, coastal/short‑term) vs. ocean currents (broad, long‑term patterns)

💭 Think About

• Ask yourself which of the options is more of a short‑term, local phenomenon rather than a long‑term average • Think about what information an ocean navigator needs for planning a route across an ocean weeks or months ahead of time • Consider which items are usually found on small‑scale coastal charts or tide tables instead of broad ocean pilot charts

✅ Before You Answer

• Verify which items are long‑term climatic averages commonly plotted on ocean‑wide charts • Identify which item is normally obtained from tide tables or current tables, not from pilot charts • Check that the remaining options are things that can be meaningfully averaged over many years for large ocean areas